<template>
<!-- 面包屑导航区 -->
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
    <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
    <el-breadcrumb-item>角色管理</el-breadcrumb-item>
    <el-breadcrumb-item>角色列表</el-breadcrumb-item>
</el-breadcrumb>
  <!-- 卡片视图区域 -->
  <el-card>
      <el-row class="btn">
        <el-col>
            <el-button type="primary">添加角色</el-button>
        </el-col>
      </el-row>

      <!-- 角色列表区域 -->
      <el-table :data="roleList" border stripe>
          <!-- 展开列 -->
          <el-table-column type="expand">
        <!-- eslint-disable-next-line -->
              <template v-slot="scope">
                  <el-row :class="['vcenter','bdbottom',i1===0 ? 'bdtop':'']" v-for="(item1,i1) in scope.row.children" :key="item1.id">
                      <!-- 渲染一级权限 -->
                      <el-col :span="5">
                          <el-tag closable 
                                   @close="removeRightById(scope.row,item1.id)">{{item1.authName}}</el-tag>
                          <i class="el-icon-caret-right"></i>
                      </el-col>
                      <!-- 渲染二级和三级权限 -->
                      <el-col :span="19">
                          <!-- 通过for循环，嵌套渲染二级权限 -->
                          <el-row :class="[i2===0 ?'' :'bdtop','vcenter']" v-for="(item2,i2) in item1.children" :key="item2.id">
                            <el-col :span="6">
                                <el-tag closable 
                                    @close="removeRightById(scope.row,item2.id)" type="success">{{item2.authName}}</el-tag>
                                <i class="el-icon-caret-right"></i>
                            </el-col>
                            <el-col :span="18">
                                    <el-tag 
                                    closable 
                                    @close="removeRightById(scope.row,item3.id)" 
                                    v-for="item3 in item2.children" 
                                    :key="item3.id" type="warning">{{item3.authName}}</el-tag>
                            </el-col>
                          </el-row>
                      </el-col>
                  </el-row>
              </template>
          </el-table-column>
          <el-table-column label="#" type='index'></el-table-column>
          <el-table-column label="角色名称" prop="roleName"></el-table-column>
          <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
          <el-table-column label="操作" width="300px">
        <!-- eslint-disable-next-line -->
              <template v-slot="scope">
                  <el-button size="mini" type="primary" icon="el-icon-edit">编辑</el-button>
                  <el-button size="mini" type="danger" icon="el-icon-delete">删除</el-button>
                  <el-button size="mini" type="warning" icon="el-icon-setting" @click="showSetRightDialog(scope.row)">分配权限</el-button>
              </template>
          </el-table-column>
      </el-table>
  </el-card>



  <!-- 分配权限的对话框 -->
  <el-dialog
  title="分配权限"
  :visible.sync="setRightDialogVisible"
  width="50%" @close="setRightDialogClosed"
  >
  <!-- 树型控件 -->
    <el-tree :data="rightList" 
    :props="treeProps" 
    show-checkbox node-key="id"
    default-expand-all
    :default-checked-keys="defKeys"
    ref="treeRef"
    ></el-tree>

  <span slot="footer" class="dialog-footer">
    <el-button @click="setRightDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="allRights">确 定</el-button>
  </span>
</el-dialog>

  </div>
</template>

<script>
export default {
    data(){
        return{
            roleList:[],
            setRightDialogVisible:false,
            rightList:[],
            treeProps:{
                label:'authName',
                children:'children'
            },
            defKeys:[],
            roleId:''
            
        }
    },created(){
        this.getRoleList()

    },methods: {
        async getRoleList(){
            const {data:res}=await this.$http.get('roles')
            if(res.meta.status!=200) return this.$message.error('获取角色列表失败')
            console.log(res.data);
            this.roleList=res.data
        },
        async removeRightById(role,rightId){
            // console.log(id);
          const confirmRusult=await this.$confirm('此操作将永久删除该权限, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err)
        if(confirmRusult!=='confirm'){
          return this.$message.info('已取消删除')
        }
        // console.log('已确认删除')
         const {data :res}=await this.$http.delete(`roles/${role.id}/rights/${rightId}`)
        if(res.meta.status!==200) return this.$message.error('删除权限失败！')
        this.$message.success('删除权限成功！')
        role.children=res.data


        },
        async showSetRightDialog(role){
            this.roleId=role.id
            const {data:res}=await this.$http.get('rights/tree')
            if(res.meta.status!=200) return this.$message.error('获取权限数据失败')
            console.log(res.data);
            this.rightList=res.data

            this.getLeafKeys(role,this.defKeys)
            this.setRightDialogVisible=true


        },
        setRightDialogClosed(){
            this.defKeys=[]
        },
        getLeafKeys(node,arr){
            if(!node.children){
                return arr.push(node.id)
            }
            node.children.forEach(element => {
                this.getLeafKeys(element,arr)
            });

        },
        async allRights(){
            const keys=[
                ...this.$refs.treeRef.getCheckedKeys(),
                ...this.$refs.treeRef.getHalfCheckedKeys(),

            ]
            // console.log(keys);
            const idStr=keys.join(',')
            const {data:res}=await this.$http.post(`roles/${this.roleId}/rights`,{
                rids:idStr
            })
            if(res.meta.status!==200) return this.$message.error('分配权限失败！')
            this.$message.success('分配权限成功！')
            this.getRoleList()
            this.setRightDialogVisible=false
            
        }
    }

}
</script>

<style lang="less" scoped>
.el-tag{
    margin: 7px;
}
.bdtop{
    border-top: 1px solid #eee;
}
.bdbottom{
    border-bottom: 1px solid #eee;
}
.vcenter{
    display: flex;
    align-items: center;
}
.btn{
    margin-bottom: 15px;
}
</style>>
